This was one of the first good co-op games, where two or more players can work through the game together. The engine is so good the graphics run very smooth on 1024 x 768 under Win-7 64 bit on my Acer netbook. Along with Syberia, these are two of the best games and ideal for portable gaming. Did try the HD version of SS but that needs a reasonable graphics card, so this version is ideal for older PC'S or laptops/netbooks. Game play is simple, just blast everything, yet there's enough to work on to keep you wanting more, so a well balanced game. Highly recomdended.